extremely

adverb

ex·​treme·​ly ik-ˈstrēm-lē 

1

: in an extreme manner

2

: to an extreme extent

Synonyms of extremely

• very
• incredibly
• terribly
• highly
• too
• so
• badly
• damned
• severely
• damn
• really
• super
• desperately
• intensely
• seriously
• far
• exceptionally

Examples of extremely in a Sentence

an extremely hot day

Recent Examples on the Web

The study of a patient’s urine was an extremely popular practice in the Middle Ages, even though doctors could tell precious little about what was ailing someone just by looking at a sample in a jar. — T.m. Brown, CNN Money, 16 Aug. 2026

Engineers maintained extremely gentle gradients across long distances while using tunnels, channels, and arched bridges to cross uneven terrain. — Atharva Gosavi, Interesting Engineering, 16 Aug. 2026

Anne is extremely close with Phillips and her daughter Zara Tindall, as well as their spouses and children. — Rachel Burchfield, InStyle, 16 Aug. 2026

An average of recent polls shows Rogers is 1 point ahead of el Sayed three months away from the general election, illustrating an extremely narrow race. — David Zimmermann, The Washington Examiner, 16 Aug. 2026

Word History

First Known Use

1509, in the meaning defined at sense 1

Phrases Containing extremely

• extremely high frequency
• extremely low frequency

Rhymes for extremely

• seemly
• unseemly